CN206144506U - Device is slowly spouted in drill way of gas drainage drilling - Google Patents
Device is slowly spouted in drill way of gas drainage drilling Download PDFInfo
- Publication number
- CN206144506U CN206144506U CN201621065134.2U CN201621065134U CN206144506U CN 206144506 U CN206144506 U CN 206144506U CN 201621065134 U CN201621065134 U CN 201621065134U CN 206144506 U CN206144506 U CN 206144506U
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- CN
- China
- Prior art keywords
- pressure release
- buffering pressure
- energy
- preventer
- storage buffering
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a device is slowly spouted in drill way of gas drainage drilling has solved the problem that produces the orifice when gas drainage drills easily. Include and be provided with to descend in advance hole sealing pipe (2) on coal seam (1), outside end descending hole sealing pipe (2) in advance has cross head cross (3) through flange joint, there is the haplopore to take out tub (4) in advance through flange joint on the last port of cross head cross (3), there is forward buffering pressure release preventer (5) through flange joint on the outer port of cross head cross (3), there is energy storage buffering pressure release preventer (7) through flange joint on the lower port of cross head cross (3), side at energy storage buffering pressure release preventer (7) is provided with water level linker (9), be provided with on the top surface of energy storage buffering pressure release preventer (7) bleed valve (12), bottom at energy storage buffering pressure release preventer (7) is provided with drainage residual cake valve door (10). The utility model discloses simple structure, it is convenient to realize.
Description
Technical field
The present invention relates to a kind of slow spray apparatus in aperture of coal mine gas extraction borehole, more particularly to a kind of underground coal mine
The aperture buffer unit of mash gas pumping drilling and its slow spray method.
Background technology
High methane and projecting mine are administered to fire damp and are broadly divided into wind resource assessment and mash gas extraction two ways.Extraction
Gas must be by being arranged drilling, connection mash gas extraction arm and house steward to coal body, by movable pump station and ground pump station
Gas pumping is carried out to coal body etc. negative pressure form.And wind row's cinder, water row's cinder are mainly taken when mash gas pumping drilling is constructed
Two ways is crept into.Wind row's cinder major defect is that the control ratio of coal dust is more difficult, and construction drill hole depth is shorter.And water row's coal
Slag has the generation that can be prevented effectively from coal dust, while the advantages of cinder is discharged into drilling, cooling drill bit by current.Most cases
More than lower underground boring construction in the form of water row's cinder.The shortcoming of water row's cinder mainly has the descending drilling of construction or drilling track
Hole internal water accumulation is difficult to discharge when having fluctuating.Run into that coal seam is soft to easily cause in hole cinder closure single hole.Due in hydraulic pressure and hole
, easily there is spray orifice phenomenon in the collective effect of gas pressure.At present, the method for employing is to connect water after the completion of single hole construction
Case, then be connected on extraction arm by water tank.Methane gas extraction pipeline burden is reduced by the cinder in unrestrained water tank and ponding, is carried
High methane extracting result, this mode major defect is as follows：Water tank is taken and is manually discharged water, and workload is big, efficiency is low.Water tank discharges water
Welded using iron sheet more than device, easily soldering opening jumps to open when there is spray orifice and hurt sb.'s feelings and produce gas leakage.Can not be to pre-draining borehole
Interior gas pressure is monitored, it is difficult to find drill collapse hole and plug-hole phenomenon.
The content of the invention
The invention provides a kind of slow spray apparatus in aperture of mash gas pumping drilling and slow spray method, solve gas pumping brill
The technical problem of spray orifice is easily produced during hole.
The present invention is to solve above technical problem by the following technical programs：
Spray apparatus, including coal seam are delayed in a kind of aperture of mash gas pumping drilling, pre- lower hole sealing tube are provided with coal seam, pre-
The outboard end of lower hole sealing tube is connected with crosshead four-way by flange, is connected with by flange in the upper port of crosshead four-way
Single hole takes out in advance pipe, positive buffering pressure release preventer is connected with by flange in the external port of crosshead four-way, in crosshead four
Energy-storage buffering pressure release preventer is connected with by flange in logical lower port, is connected on the bottom surface of energy-storage buffering pressure release preventer
Support base is connected to, the side of energy-storage buffering pressure release preventer is provided with water level linker, in energy-storage buffering pressure release preventer
Vent valve is provided with top surface, the bottom of energy-storage buffering pressure release preventer is provided with draining slag-discharging valve.
Energy-storage buffering pressure gauge is provided with energy-storage buffering pressure release preventer, is arranged on positive buffering pressure release preventer
There is positive buffering pressure meter.
A kind of slow spray method in aperture of mash gas pumping drilling, comprises the following steps：
The first step, on coal seam pre- lower hole sealing tube is set, crosshead is connected by flange in the outboard end of pre- lower hole sealing tube
Four-way, connects single hole and takes out pipe in advance in the upper port of crosshead four-way by flange, passes through in the external port of crosshead four-way
The positive buffering pressure release preventer of flange connection, energy-storage buffering pressure release blowout prevention is connected in the lower port of crosshead four-way by flange
Device, the side of energy-storage buffering pressure release preventer is provided with water level linker, arranges on the top surface of energy-storage buffering pressure release preventer
There is vent valve, the bottom of energy-storage buffering pressure release preventer is provided with draining slag-discharging valve；
Second step, in construction drill, first remove positive buffering pressure release preventer, send into drilling rod, it is close in the end of drilling rod
Block plate, drills in drilling process, and the cinder and water for returning out is flowed in energy-storage buffering pressure release preventer by deadweight, produces
Gas pipe taken out in advance by single hole take away, pressure changing in hole, passes through during being drilled by the monitoring of energy-storage buffering pressure gauge
Water level conditions in observation water level linker monitoring energy-storage buffering pressure release preventer；
3rd step, unlatching draining slag-discharging valve carry out deslagging operation, while opening vent valve, the pressure release of release energy-storage buffering is prevented
Negative pressure in spray apparatus, reaches the purpose of quick deslagging.
Present configuration is simple, it is convenient to realize, it is to avoid drilling gas in drilling process mesopore is discharged to operating location
Cause gas accident and because mash gas pumping drilling spray orifice causes the generation of casualty accident.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in detail：
Spray apparatus, including coal seam 1 are delayed in a kind of aperture of mash gas pumping drilling, and pre- lower hole sealing tube 2 is provided with coal seam 1,
Crosshead four-way 3 is connected with by flange in the outboard end of pre- lower hole sealing tube 2, method is passed through in the upper port of crosshead four-way 3
Orchid is connected with single hole and takes out pipe 4 in advance, and positive buffering pressure release preventer 5 is connected with by flange in the external port of crosshead four-way 3,
Energy-storage buffering pressure release preventer 7 is connected with by flange in the lower port of crosshead four-way 3, in energy-storage buffering pressure release preventer
Support base 8 is connected with 7 bottom surface, the side of energy-storage buffering pressure release preventer 7 water level linker 9 is provided with, in accumulation of energy
Vent valve 12 is provided with the top surface of buffering pressure release preventer 7, the bottom of energy-storage buffering pressure release preventer 7 is provided with drainage
Slag valve 10.
Energy-storage buffering pressure gauge 11 is provided with energy-storage buffering pressure release preventer 7, on positive buffering pressure release preventer 5
It is provided with positive buffering pressure meter 6.
A kind of slow spray method in aperture of mash gas pumping drilling, comprises the following steps：
The first step, on coal seam 1 pre- lower hole sealing tube 2 is set, cross is connected by flange in the outboard end of pre- lower hole sealing tube 2
Head four-way 3, connects single hole and takes out pipe 4 in advance, in the external port of crosshead four-way 3 in the upper port of crosshead four-way 3 by flange
It is upper to buffer pressure release preventer 5 by the way that flange connection is positive, energy-storage buffering is connected by flange in the lower port of crosshead four-way 3
Pressure release preventer 7, the side of energy-storage buffering pressure release preventer 7 is provided with water level linker 9, in energy-storage buffering pressure release preventer 7
Top surface on be provided with vent valve 12, the bottom of energy-storage buffering pressure release preventer 7 is provided with draining slag-discharging valve 10；
Second step, in construction drill, first remove positive buffering pressure release preventer 5, send into drilling rod, it is close in the end of drilling rod
Block plate, drills in drilling process, and the cinder and water for returning out is flowed in energy-storage buffering pressure release preventer 8 by deadweight, produces
Raw gas is taken out in advance pipe 4 and is taken away by single hole, pressure changing in hole during being drilled by the monitoring of energy-storage buffering pressure gauge 11,
Water level conditions in energy-storage buffering pressure release preventer 7 are monitored by observing water level linker 9；
3rd step, unlatching draining slag-discharging valve 10 carry out deslagging operation, while opening vent valve 12, release energy-storage buffering is let out
Negative pressure in pressure preventer 7, reaches the purpose of quick deslagging.
Drilling construction completes to withdraw from after drilling rod, and with flange connection is positive pressure release preventer 5 is buffered, and installs positive buffering pressure
Power table 6, carries out pre- taking out；When stoppage phenomenon in drilling, can be carried out by the situation of change of energy-storage buffering pressure gauge 11
Observation；During generation spray orifice, frontal impact ripple is flexible by positive buffering pressure release preventer 5 and energy-storage buffering pressure release preventer 7
Damage of the shock wave to equipment is alleviated in deformation, reaches the purpose of pressure release buffering；The slow spray apparatus in multiple single hole apertures can be passed through
Connect to increase energy-storage buffering ability.
Claims (2)
1. a kind of slow spray apparatus in aperture of mash gas pumping drilling, including coal seam（1）, in coal seam（1）On be provided with pre- lower hole sealing tube
（2）, in pre- lower hole sealing tube（2）Outboard end crosshead four-way is connected with by flange（3）, it is characterised in that in crosshead four
It is logical（3）Upper port on single hole be connected with by flange take out pipe in advance（4）, in crosshead four-way（3）External port on pass through flange
It is connected with positive buffering pressure release preventer（5）, in crosshead four-way（3）Lower port on energy-storage buffering be connected with by flange let out
Pressure preventer（7）, in energy-storage buffering pressure release preventer（7）Bottom surface on be connected with support base（8）, it is anti-in energy-storage buffering pressure release
Spray apparatus（7）Side be provided with water level linker（9）, in energy-storage buffering pressure release preventer（7）Top surface on be provided with vent valve
（12）, in energy-storage buffering pressure release preventer（7）Bottom be provided with draining slag-discharging valve（10）.
2. spray apparatus are delayed in a kind of aperture of mash gas pumping drilling according to claim 1, it is characterised in that in energy-storage buffering
Pressure release preventer（7）On be provided with energy-storage buffering pressure gauge（11）, in positive buffering pressure release preventer（5）On be provided with it is positive slow
Stamping press table（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621065134.2U CN206144506U (en) | 2016-09-20 | 2016-09-20 | Device is slowly spouted in drill way of gas drainage drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621065134.2U CN206144506U (en) | 2016-09-20 | 2016-09-20 | Device is slowly spouted in drill way of gas drainage drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144506U true CN206144506U (en) | 2017-05-03 |
Family
ID=58618538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621065134.2U Withdrawn - After Issue CN206144506U (en) | 2016-09-20 | 2016-09-20 | Device is slowly spouted in drill way of gas drainage drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246132A (en) * | 2016-09-20 | 2016-12-21 | 山西汾西矿业（集团）有限责任公司 | Spray apparatus and slow spray method are delayed in the aperture of mash gas pumping drilling |
-
2016
- 2016-09-20 CN CN201621065134.2U patent/CN206144506U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246132A (en) * | 2016-09-20 | 2016-12-21 | 山西汾西矿业（集团）有限责任公司 | Spray apparatus and slow spray method are delayed in the aperture of mash gas pumping drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20180928 |